72797628 has 12 divisors (see below), whose sum is σ = 169861160. Its totient is φ = 24265872.

The previous prime is 72797609. The next prime is 72797629. The reversal of 72797628 is 82679727.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72797629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3033223 + ... + 3033246.

Almost surely, 2^72797628 is an apocalyptic number.

It is an amenable number.

72797628 is an abundant number, since it is smaller than the sum of its proper divisors (97063532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72797628 is a wasteful number, since it uses less digits than its factorization.

72797628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6066476 (or 6066474 counting only the distinct ones).

The product of its digits is 592704, while the sum is 48.

The square root of 72797628 is about 8532.1526006044. The cubic root of 72797628 is about 417.5473607334.

The spelling of 72797628 in words is "seventy-two million, seven hundred ninety-seven thousand, six hundred twenty-eight".